How loud is a F18 aircraft !?

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Guest

Posted: Fri May 02, 2008 3:59 pm

Hi, will be recording one soon...taking off ,passing by (breaking the
sound barrier ) landing.
How loud will this aircraft be for my mic position and distance from
it (yet to be detemined )...in decibels and intensity loudness.I have
no idea what mic I will use right now...but thinkng about the Senn 421
or 441... I do not own a Scheops unfortunately.
Maybe my SM 58 for the sonic boom hit...but I know that I wont get
much before and after the boom with the SM 58....any ideas anyone ?
Do you think I can record the pass-by sonic boom with my Senn 421 at
lets say about 300 - 500ft from the aircraft ?
Thanks.
TC

Dave Fisk

Posted: Fri May 02, 2008 4:19 pm

Guest

I'd say go with a 421 and a 57. Definitely dynamic mics. A schoeps
will just get puked out if you are too close. These things are loud.
Then they kick in the afterburner when they take off on a carrier, and
you can literally hear the are ripping. Sounds weird.

If you want to get really adventurous, mount some lavs right on the
edge of the exhaust nozzle, and run the cable into the cockpit into a
zaxcom zfr1. Don't know if the lav will survive, but I bet it might
sound cool for a few seconds. Maybe put some lavs on the wings for
when the plane breaks the sound barrier. Again, they might not
survive, but it might sound cool for a bit. You'd need some high speed
tape to keep the cables taped down on the plane. The NASCAR guys use
this to mark where they put the jack for the jackman in the pit crew.

-Dave

Travis Groves

Posted: Fri May 02, 2008 4:53 pm

Guest

I recorded F-18's doing touch-n-go's a few years back and was
absolutely overpowered by the sound level. I brought along a pair of
sm-57s and a pair of MD-421s; one pair recording to DAT, and one pair
recorded to an FR-2. First pass, I was approx. 25 yards from the
flight line. The Hornet comes in low, touches down for a split
second, then hits the thrusters and shoots up with blue flames tailing
ten feet behind. The moment the jet hit the thrusters, I fell on the
ground and ripped off my cans, plunging my fingers into my ears.
Next pass, I moved back another 25 yards and gave up on
monitoring. What I noticed from the first passes, was that the FR-2
freaked out at the dB; HDMA drive crashed, but the DAT stayed
rolling. When I checked out the recordings later on, they sounded
scary as shit... raw power...death from above....pity the poor fools
at the receiving end of an F-18 Hornet.
My advice, record with compact flash recorder, use dynamic mics
( 421 being my fav), and forget about monitoring unless you have some
Remote Audio HN cans or in ear monitors that have serious
attenuation. Have fun and enjoy the fact that your not hearing them
scream over your village... or what was left of your village.

Cheers,

Travis Groves

Brent Lestage, CAS

Posted: Fri May 02, 2008 4:58 pm

Guest

On May 2, 10:19 pm, Dave Fisk <dfis...@gmail.com> wrote:

Quote:

If you want to get really adventurous, mount some lavs right on the
edge of the exhaust nozzle, and run the cable into the cockpit into a
zaxcom zfr1. Don't know if the lav will survive, but I bet it might
sound cool for a few seconds. Maybe put some lavs on the wings for
when the plane breaks the sound barrier. Again, they might not
survive, but it might sound cool for a bit. You'd need some high speed
tape to keep the cables taped down on the plane. The NASCAR guys use
this to mark where they put the jack for the jackman in the pit crew.

-Dave

OMG! Funny stuff here... "lav mics on the exhaust nozzle and the wings
of an F-18"... "wired from the cockpit to the nozzles"... "high-speed
tape"... "they [the lavs] might not survive" Okay, I can quit this
business now -- I've heard it all! Very Happy

--
B

Guest

Posted: Fri May 02, 2008 5:31 pm

Quote:

--
B

Actually , If I would really want to get adventurous , I should ask
the pilot to strap me down with the high speed tape onto the
wings.....and then I can hand hold my '' boom '' mic and point it
towards the cockpit or thrusters as I wish....as a bonus track , I can
get the crowd noise below when we fly by them !
TC
Good advice so far and a great laugh too.

Guest

Posted: Fri May 02, 2008 5:38 pm

But seriously folks....my ongoing research on the matter tells me that
not only is this flying beast loud......its very fu*king loud !!

http://www.jetnoise.org/09_NoiseExplained/soundmeasured.htm

TC.

Marc

Posted: Fri May 02, 2008 6:22 pm

Guest

Funny, I as well, within the next couple of weeks, will be on a shoot
documenting military exercises. I am also curious of the ideal setup
for picking up takeoffs, landings and sonic booms.
Mics I have at my disposal, are 416, 816, 50, 635a. Unsure as to
which to use when, and which to just leave in the bag. Is there a real
possibility of damage to capsules?

Charles Tomaras

Posted: Fri May 02, 2008 9:07 pm

Guest

<campatom@yahoo.ca> wrote in message
news:657d0a31-0f79-4811-9e9f-3ec71c9b260d@59g2000hsb.googlegroups.com...

Quote:

I did some F-16 stuff a few years ago from edge of tarmack at about point of
rotation on take offs using a 416 with phantom power feeding line input on a
Cooper CS 104. Was dead silent as the jet approached, at moment of rotation
I had solid clean levels and then back to near silence. On multiple take
offs I got approach and ascent in mic level mode and just gave the mic a 90
degree turn and pulled down the pot when the jet got too close. Don't know
who edited it or how it all worked for them but I did cleanly capture all
segments of take off for the shot.

Guest

Posted: Sat May 03, 2008 1:38 pm

Quote:

Would it be possible to record to several tracks at different levels?

I'm remembering how they filmed the first atomic blast. There was a row of
cameras with gradient filters increasing in strength down the row. The
same principle could apply to an audio recording.

Thanks Carey ,thats exactly my plan of attack right now.
I will be recording two tracks on a Sony HDCAM probably some padded
down condenser mics off axis from the source.
I also will have with me two 774t's...two tracks on each units using
different mics for both units.
I do have time to do some testing before the actual shoot
begins...then I will simply use the best of all three recordings or a
mixture of.I will place the 744t's at a good distance from each other
with their respective mics attached..all ofcourse jam sync with the
cam rolling tape.The HD recorders will be inside foam protected cases
for extreme vibrations..Got an idea to feed out the sound ( mono
ofcourse ) of the 744T's with wireless into my 442 to monitor several
sources at the same time A / B.
I may also set up a double MS configuration for one 744t..using my MKH
30 and MKH 40 mics..already set up in a zepplin. Mid front , Side ,and
Mid rear.I have had very good results in other loud sources recordings
I have made.So , as you can see , the man has a plan ,looks good so
far on paper and theory...hopefully it wont sound like shit in my
ears !
Thanks.

Guest

Posted: Sat May 03, 2008 2:43 pm

Quote:

... and forget about monitoring unless you have some
Remote Audio HN cans or in ear monitors that have serious
attenuation. Have fun and enjoy the fact that your not hearing them
scream over your village... or what was left of your village.

I'll second Travis' comment there - I haven't done this high SPL
stuff, but have a pair of 93dB(A) attenuated Sonys (actually my least
favourite headphone but most useful and comfortable) which I use for
sudden high level sounds in extreme-gain situations for low level
recording. Look after your ears first and listen and learn from your
recordings afterwards. Wear plugs and/or extreme protectors, point the
mic! And share your experience here with us afterwards, please!

One point, if you had the spare channels - things like that
(helicopters a special case in point) sound different on the ground,
at listener level, than close up - so try to cover the sound with a
less directional mic (omni-cardioid) as well as a directional one -
both extremes could be useful in different ways later on in post.

Cheers, Jez Adamson

Carey Carlan

Posted: Sat May 03, 2008 6:03 pm

Guest

campatom@yahoo.ca wrote in news:657d0a31-0f79-4811-9e9f-3ec71c9b260d@
59g2000hsb.googlegroups.com:

Quote:

Soundhaspriority

Posted: Sat May 03, 2008 10:42 pm

Guest

<tomaras@tomaras.com> wrote in message OOPSj.69438$y05.25242@newsfe22.lga

Quote:

Don't know
who edited it or how it all worked for them but I did cleanly capture all
segments of take off for the shot.

They likely just dubbed in the sound of a '66 Ford.

"I don't really have a replacement career, it's a very gnawing thing."

Robert Morein
Dresher, PA
(310) 237-6511
(215) 646-4894

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